#include<stdio.h>
#include<pthread.h>
#define NULL 5
void *print_msg(void *)
int main()
{
pthread_t t1,t2;
pthread_create(&t1,NULL,print_msg,(void *)"hello");
pthread_create(&t1,NULL,print_msg,(void *)"world\n");
pthread_join(t1,NULL);
pthread_join(t2,NULL);
printf("t1,t2 finished");
return;
}
void *print_msg(void *m)
{
char *cp=(char *)m;
int i;
for(i=0;i<NUM;i++)
{
printf("%s",m);
fflush(stdout);
sleep(1);
}
return NULL;
}


